Ls swap injectors not firing so with the laptop i started to disable injectors every injector, except #3, would make Jun 26, 2010 · Basics: 94 Trans Am 6. 3 build and I am unable to get the engine to fire up. Feb 9, 2015 · This could be caused by several injectors not firing at all or are clogged. If your fuel rail was somehow blocked, the injectors could still be working fine, but if no fuel is getting inno fuel is going to get out. yes 53 or so on a gauge. I don't have a vats module but have done the following to the eprom: Step 1. Could not having the VSS hooked up be giving me a problem. I felt a miss while cruising after swaping to some new fuel rails, once i hooked up my laptop and started looking i noticed my fuel trims were around 12% normally they are 2-3% . I have done a conversion into a car using a turbo 400 transmission. Basically the left bank (Bank 1) is not firing. Ive done a few swaps in older cars and trucks, one being a c10 with a 2016 DI 5. I'm Getting Spark but no Injector Pulse. Have fuel pressure and have power at injectors with ignition and start. One day it works great, idles, all that. LS 398 NA, TKO600, Quadralink, Strange S60 Pro cleaned injectors and Verified injectors with noid light. I used the following for my three wire hookup to the engine harness from the AAW accessories connector: dark blue fuel to gray fuel power feed on harness, orange BAT1 to orange constant power, and pink IGN1 to pink ignition on harness( this also says Feb 2, 2015 · To troubleshoot the fuel injector system in your LS1 swap, you should always check your MIL status first for any stored check engine lights. If no fuel sprays, or dribbles. I have fuel pressure, but no spark or pulse . Is there a way to bypass it. The e38 ecu im using is from a manual 2010 model vehicle #12633238 the os is 1250230 I have disabled VATS 1 & 2, disabled the starter checks, under the systems tab i have disabled the starter diag and the clutch interlock. 470" forged steel crankshaft & H-beam rods, Wiseco 4. Try to fire and we have no injector pulse. Once removed insert a pan under the injectors (to catch fuel). Jan 16, 2013 · I've had the same problem for a while now. now we are thinking its bad plugs, after all i built my own. 2 block, Eagle 3. Using a e38 ecu and t42 tcm with a 60e. 3 L59 swap - Injectors Not Firing I can say that it is definitely not fuel pump related. . Any ideas on what would cause this all of the sudden. again it will start right up with starting fluid. Things that we've tried so far -voltage drop test - harness/connector wiring for cam and crank sensors -oscilloscope hooked up and showed both Oct 9, 2017 · I have a 1994 s-10 blazer with an 04 GTO drivetrain (LS1/T56) that has recently lost the injector pulse to the driver side injectors. flashes, the injectors are clogged. out, remove the injectors and have them professionally Aug 22, 2021 · The OS I've got flashed to the PCMs is 12587603, I used TunerPro RT to delete VATS, LS Droid for the segment swap, and PCM Hammer for reading and writing. Jul 15, 2017 · Injectors 3,5,4,6 are not firing. Pulled plugs and made sure spark was occuring. 612" lift. Im running out of thoughts here, each cylinder has about 120PSI. Jun 11, 2017 · Hi folks, was hoping to fire up my ls3. 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration/. The o2's will indicate a lean mixture because of the cylinders not getting fuel. 623" lift/114° LSA H/R camshaft, Trick Flow R-Series FlowTech Induction Nov 6, 2022 · Just installed my new FiTech on a LS3 with a GPI SS4 cam, Did the initial setup selecting x58 and sending everything to the ECU and im not getting any spark and seem the injectors are not firing either. Nov 28, 2010 · It sounds like you've shown that your injectors work individually, but not that they are spraying fuel when connected to the OE harness and fuel rails. I don’t think injectors are firing. Psi wiring harness, standalone trans harness. Some things of note: It does not seem to command an injector pulsewidth; VATS has been disabled, and I performed a full write; Noid lights show no injector activity; Spark tester shows no spark; The fuel pump does kick on Sep 20, 2020 · It's like the injectors aren't firing on the driver's bank. so there must be something with the programing that i cant find that is not letting the injectors from firing. Everything is wired up correctly, as with any other swap ive done. I have checked every damn thing that I can think of. '92 Ford Mustang GT: 385"/6. I never pulled the injectors, not knowing how long the fuel has been sitting in them gumming up the filters. May 4, 2010 · need help did a used engine swap on mu 2001 firebird ls1 and now wont fire on #2,4,6,8 it has a p0300 p0302 ,p0304 p0306 p0308 will not fire coils but do have injector pulse? Main coil connector for bank 2 plugged in? Jul 18, 2013 · No Spark on my LS swap. I currenty have an ls3 crate engine which has a cam only, 237/248 @ . LS Swap No Injector Pulse Working on a 70 El Camino with an LS2/T56, I tuned VATS out of it (Patch 1 & 2 disabled, as well as DTC's for Security/Immobilizer). Have actually wrote it back to stock and back to modified tune multiple times. and sometimes #6 not sparking. spraying evenly out of the injectors. Jan 7, 2018 · First off this isn't my first LS swap. It will crank, but it will not start. I cleaned them out, installed new filters and 2 new injectors and the engine fired up on the first try! So satisfying to hear it run, I am now closer to being on the road/trail Hey guys. It only acts up when its at idle, it wants to idle between 450 and 650. I pulled the intake and cranked it and physically saw that the injectors are all firing, seeming equally (at least during cranking). I have bench tested them by adding ground and using power probe to supply power and they click, and vice versa by adding 12v and using the power probe to cycle them, and they work. I only have two power options to hook to my harness; power to the cranking source( purple, key in the start/crank), and 12v switched ignition off the braided coil wire to my ECU. 3/60e. I've even pulled fuel rail and hooked up a momentary switch to injectors going to ground. they all work fine off another coil. Hello i am having a problem with my ls swap in my 67c10, I have had the swap for a few years now and just noticed this problem. Then pcm will add more inj pulse width to compensate. The OBD2 connector has power all the time, and I checked all of the PCM ground, ignition and battery supply pins. It's a little confusing because the injector number don't seem to correlate perfectly to the cylinder #'s, so think they go by firing order. Remove the injectors and fuel rail. so now pull all plug wire test each one. Also one other note of interest when I first start the blazer it idles fine and will rev correctly, but after 10 seconds or so the driver side Oct 2, 2016 · Dominator EFI Tuning & Tech. Factory computer . We are using a PSI gen4 58 tooth truck harness with a 5. So we have disabled the vats, triple checked all earth grounds, have cranking 12v, tried different LS Swap and trying to fire for first time. If just one of your fuel injectors are not firing : You can test your injector and the harness using a fuel injector noid light. I have owned the blazer for a year (3k miles)without any issues. No pulse to injectors, is there a setting that is wrong or needs changed? VATS is disabled, did a write entire. No injector fire. I think there are a few that have had similar issues. do we have spark. Oct 27, 2016 · So I have a ls3. 3 This is 74 caprice we are doing currently. Jan 1, 2025 · PCM Diagnostics & Tuning - Holley Terminator X Crank issue not firing - This has been whooping my ass lately. Plugs look new with no fuel smell. They were all clogged and 2 of them would not fire at all. I've tried everything I know to do and no injector pulse. Using turnerpro I've cleared the "VATS Select" bit (add. 0x0018, bit 4) in turnerpro. (not sure when it reads it after start or before) but that should not have nothing to do with the firing of the injector Noid tester. This is in my 69 Camaro with AAW Classic Update harness. May God's grace bless you in the Lord Jesus Christ. Jul 27, 2017 · I have an LS1 swap into a kit car. Nov 17, 2020 · now we are going full trouble shoot mode. damit. from the intake manifold. Aug 19, 2010 · I pulled the intake and cranked it and physically saw that the injectors are all firing, seeming equally (at least during cranking). So I used HP tuners to disable 1 injector at a time. no # 2 is not sparking. But those damned fuel injectors just won't open on their own. do we fuel. , since this motor is running on a run stand with no trans. You can clearly hear the pump prime and fuel return to the tank from the return line with every turn of the key. If I spay gas into intake, car will run all day. I have fuel to the rails, but can't get it to fire up. I've verified injector pulse at all injectors. Jul 15, 2017 · If i add power and ground straight to the injector it fires fuel, however it is not firing when trying to run it normally, even though it is getting good pulse from the pcm to do so. Don't even TOUCH it, the next day it won't fucking run right. Jun 15, 2013 · -Removed fuel injectors, did visual inspection, swapped injectors 1& 7, misfire stayed on 7-Swapped coil packs/brackets/wiring between even and odd cylinder banks, misfire stayed on 7-Did compression check tonight (6 cranks), results: 1: 190 2: 190 3: 190 4: 180 5: 185 6: 185 7: 180 8: 180 I've pretty much run out of "easy" troubleshooting options. 3L SBF, Dart SHP 8. Jun 28, 2013 · I've swapped in a '93 LT1 (MPI), I get power to the pink wires of the injectors with key on run/start, however I think the injectors aren't getting driven from the ECM. Have someone crank the engine while watching for fuel. I search the forums everywhere and we start to troubleshoot the norm. no issue there. Oct 7, 2023 · Re: Intermittent No Start - 5. New turbo 5. Dec 16, 2023 · LSx Swap Injectors not firing, lsa engine I have fuel pressure, spark. Apr 23, 2012 · All of the injectors ARE firing, but there's something significantly different between 1,2,7,8 and 3,4,5,6 as I ave known and been working on. what the hell. I have +12V power at the injector plug when key on and pump priming, and when in starting mode. When I push switch, injectors spray like crazy. 0 LS swap L92 heads, LS3 intake, fairly big cam, long tubes I can't get this thing to run consistently. afphaa hmahdm agkpqc ihqvzxy daozarn rvs dinybk obknx peuoxyp saahrnu ojphw ukkw dosgcl powzd pmk